At Headset Buddy, get great deals with this online offer from Headset Buddy! You won't be disappointed with your purchase! 01-PH35-RJ9 New Quick view Agent Buddy Training Switch Adapter for VoIP Phones and Headsets Dual control with 2 mute and volume control buttons Listen-in only or train/take over call Works with wired or wireless headsets or a mix Compatible with many headsets including Plantronics. 01-PH35-ltgm New Choose Options Quick view Line-level Audio Plus Monitoring Adapter for iPhone Smartphones 25,76 Monitor your line level audio recordings Includes attenuator that allows for line-level to mic-level conversion Works with most phones that have a combined headset and mic jack Allows the use. Does not work with RJ11 (which is the size of the phone. Choose Options, quick view, line-level Audio Adapter for iPhone Smartphones 17,16, record line-level audio from your mixer or soundboard on your iPhone, smartphone. 01-CM2502 New Add to Cart Quick view.5mm to Lightning Headphone Jack Audio Adapter 12,86 100 MFi-certified. Right now, get 5 Off. Convert.5mm Smartphone plug to single 4P4C RJ9/RJ10 handset plug. This coupon expired on CDT. Save money by buying a smartphone.